Incandescent gas-burner.



PATENTED DEC. 5, 1905.

0. WIEDERHOLD. INCANDESCENT GAS BURNER.

APPLICATION FIIED JUNE Z7, 1904.

Wznesse.s;:

l UNITED lsTATEs PATENT oEEIoE.

g os'oAR WIEDERHoLp, oF JEEsEr CITY, uEw''.ninsnr.V i

INGANDESGENT GAS-BURNER.

Specification of Letters Patent.

' Patented Dec. 5, 1905.

Application ned June 27.1904.Y seria1N0.2'14,24.

To a/ZZ whom it may concern: y

Be it known that I, OSCAR WIEDERi-IOLD, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in` Incandescent Gas- Burners, of which the following is a specification.

My invention relates to incandescent gasburners, and has for its object to improve theconstruction of such burners. v

In the accompanying drawings I have shown a burner of the general class to which my invention relates, which drawings show one form of device in which my invention may be embodied, the drawings being illustrative Yeificiently-acting burner in which the gaswill be properly distributed to .the burning-'point and in which a proper mixture of air and gasl will be effected; second, to provide aregulatorfor the admission of gas which may be readily manipulated and delicately adjusted, -so that it will not be necessary to have a skilled operator set up the burner, and, third, to provide means whereby the center rod or support will Vbe held in a vertical position, warping or twisting of the sieve of the ca p being prevented. With this general premise I will now describethe-form of burner shown in the drawings, without intending to 'limit myself to such construction.

In the drawings, a indicates a connectingnipple terminating at its upper end in a conical projection in the nature of a needle-valve, which conical projection enters an apertured partition e. The vportion of the connectingnipple within which the body of the plug Z works is provided Awit'hiinternal grooveso,

around which the gas may pass. A shaft ZZ.

is journaled in `the side'of the -nipple Z and has a cam or eccentric portion CZ` bearing against the llower face f of' the plug Z). A spring f surrounds the plug Z) and bears against a shoulder t on the plug. Rotation of the shaft Z will cause the plug?) to be lindrical. `is provided with lateral air-inlet apertures j.

raised, and a reverse movement of the shaft will permit the spring f to restore the plug v to its initial position. It will be. understood that the plug may be prevented from dropping out by suitable lugs f2 or other suitable stop devices. By raising the plug Z) up or down the extent of the entrance of its conical portion into the central aperture of the apertured partition e may be regulated, thereby regulating the How of gas.

rIhe nipple a is surmounted by a feedertube or mixing device g, whoseI lower end Zt is made conical and whose upper end t' is made of substantially parallel walls, preferably cy- The lower end of the feeder-tube An air-shield /z/ is preferably provided for shielding the apertures j from the direct access of air, being beaded to the mixing device h, as shown at h2. Acircumferential bead 7c is also preferably provided for the purpose of supporting the upper end, which also supports the gallery, which gallery supports the glassware of the lamp should it be desired to use glassware or chimneys with the lamp. The mixing device or feeder-tube Za delivers into a mixing-chamber Z, shown in the present instance as comprising a shellm of a general cylindrical form, forced into an outer casing p of the mixing device. The outer casing'p is'enlarged at g, so as to form an annular chamber r between the mixing-chamber Z and the upper end of the casing q. The upper end of the mixing-chamber Z, being the shell m, is provided with apertures s, preferably elongated, as'4 shown, for the lateral delivery of the air-and-gas mixture into the annular chamber r.

A suitable gallery may be provided, firmly secured to the shell q, in case it is desired to employ glassware.v Fitting over the upper end of the shell or chamber g is a cap u,

provided with a screw lv. A suitable spreader w vis secured to the cap. This spreader is shown in the present instance as a frusto-con- IOS ical 'plug having a cylindrical base y adapted to t into and entirely closing the upper end of the mixing-chamber Z, the purpose of which will be presently explained. The plug is also provided with a shoulder 2 and with a y hollow stem 1, whose edges are swaged or splayed outward to bear upon a washer 2, between which washer and the shoulder z the screen or sieve fu is rmly gripped.

v The purposesV of the construction just described are numerous, among. which are zthe following: The hollow stem affords a secure and efficient socket for the center rod or mantle-support 3, which mantle-support is designed to support a mantle 4 and to maintain the same accurately centered. It further provides means whereby the ascending mixture of gas and air will be distributed laterally to the apertures s and thence against the wall q of the casing p, and as the conical plug .fr is immediately in rear or opposite each of the apertures s gas will be eflciently distributed to the outer casing or wall q and will thence pass direct to the burning-point, the upper end of the tube being closed by the plug for that purpose. Furthermore, the cylindrical portion y of the spreader w, fitting snugly within the mixing-chamber m, maintains a rigidity of construction, so that objectionable warping of the'screen or sieve e is thereby obviated.

It will be understood that in the ordinary operation of Bunsen burners, whereby a center rod is supported by a sieve, the sieve, expanding unequally under the influences of the heat, will cause the center rod to incline in one direction or the other, thereby displacing the mantle and subjecting the same to strain and also destroying the centering thereof, so that it will be acted upon unequally in different portions of the circumference and extent by the Bunsen flame, both of which causes will operate to diminish the life of the mantle. It will be seen that by the rigid construction which I have provided such objectionable strain and abnormal positioning will be obviated. It will further be observed that by closing the upper end of the mixing-chamber Z and locating the apertures s at the eX- treme upper end of the mixing chamber the gas will be delivered into the chamber fr directly at the burning-point of the burner and for a considerable distance belou7 it. This feature, taken with the frusto-conieal mixing device t and the substantially straight mixing-chamber above it, will conduce tol a very rapid flow of gas and air and a highly-eilicient Bunsen-burner effect.

The details of operation of the burner will be readily understood by those skilled in the art and the minute details of construction may be observed from the drawings. Vlf have not, therefore, attempted to set forth the minute construction in detail or the minute operation.

Having described my invention, what l claim, and desire to secure by Letters Patent, is-

l. In a Bunsen burner, the combination ol an outer casing and an inner tube or mixingchambcr, a removable sieve and a socketed plug carried by the sieve and entering and litting into the mixing-chamber and thereby ob viating objectionable warping or moving of the sieve so that a mantle may be supported from the center of the sieve in a substantially unvarying position.

2. In a Bunsen burner, the combination of an outer casing and an inner tube or l'nixingchamber, a removable sieve fitting to the said outer casing, a socleted plug carried by the sieve, the said plug having a straight portion l/ adapted to enter and lit into the mixingchamber so as to obviate objectionable warping or moving of the sieve so that a mantle may be supported from the center of the sieve in a substantially unvarying position.

OSCAR WIEDERHOLI).

Witnesses:

JOSEPH MILLER, ALLisoN O. TUTTLE. 

